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Jan 14, 2019

Observing The NEO 2019 AG7 on 2019-01-13 from Siding Spring Australia


The asteroid 2019 AG7(Classification: Aten [NEO])
[Estimated Diameter 23 m - 51 m]
on 2019-01-13
from Siding Spring Observatory,
 Coonabarabran, NSW, Australia. (MPC Q62)
a stack of 12 - 5 second luminance BIN2 images
taken with iTelescope.net's (T30)
By Steven M. Tilley



The asteroid 2019 AG7(Classification: Aten [NEO])
[Estimated Diameter 23 m - 51 m]
on 2019-01-13
from Siding Spring Observatory,
 Coonabarabran, NSW, Australia. (MPC Q62)
a stack of 12 - 5 second luminance BIN2 images
taken with iTelescope.net's (T30)
By Steven M. Tilley
..

The asteroid 2019 AG7(Classification: Aten [NEO])
[Estimated Diameter 23 m - 51 m]
on 2019-01-13
from Siding Spring Observatory,
 Coonabarabran, NSW, Australia. (MPC Q62)
a stack of 12 - 5 second luminance BIN2 images
taken with iTelescope.net's (T30)
By Steven M. Tilley

Orbit diagram 2019 AG7
Earth Distance: 0.014 AU
Sun Distance: 0.988 AU
courtesy of NASA/JPL-Caltech
2019-01-13 13:25 UTC
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2019AG7


Background
(as of 2019-01-13)
  • Object:2019 AG7 
  • Orbit Type: Aten [NEO]
  • Approximate Diameter: 23 m to 51 m (75.4593 feet to  167.323) (Absolute Magnitude: H= 25.32)
  • On the Sentry Risk Table:  Yes 
    •  NOTE this is NOT a prediction of an impact but rather a statement there is insufficient observational data rule out an impact -- for more information read  Understanding Risk Pages by Jon Giorgini
    • "The likelihood of a collision is zero, or is so low as to be effectively zero. Also applies to small objects such as meteors and bodies that burn up in the atmosphere as well as infrequent meteorite falls that rarely cause damage.."
  •  On the NEODyS CLOMON2 risk page: Yes
  • First(Precovery) Observation was made: 2018 12 31.614374(By Pan-STARRS 1, Haleakala, US/Hawaii.  (MPC Code F51))
  • Discovery observation was made:2019 01 09.37994 (By the Catalina Sky Survey, US/Arizona. (MPC Code 703)
  • Last Observation(publish): 2019 01 12.582898 (By Mauna Kea-UH/Tholen NEO Follow-Up (2.24-m) (MPC Code T12)
  • Data-Arc Span (publish): 12 days
  • Number of Optical Observations(published):54
  • Observatories Reporting (Published) Observations(MPC Code): 
    • (204) Schiaparelli Observatory,Italy. 
    • (291) LPL/Spacewatch II, US/Arizona.  
    • (474) Mount John Observatory, Lake Tekapo, New Zealand. 
    • (703) Catalina Sky Survey, US/Arizona. 
    • (807) Cerro Tololo Observatory, La Serena, Chile.
    • (F51) Pan-STARRS 1, Haleakala  (N20.707235 W156.255910)  US/Hawaii.
    • (F65) Haleakala-Faulkes Telescope North, US/Hawaii. 
    • (G40) Slooh.com Canary Islands Observatory, Canary Islands (Spain).
    • (I52) Steward Observatory, Mt. Lemmon Station
    • (J04) ESA Optical Ground Station, Tenerife, Canary Islands (Spain). 
    • (J95) Great Shefford,UK. 
    • (L01) Višnjan Observatory, Tičan, Croatia.
    • (T05) ATLAS-HKO, Haleakala, US/Hawaii. 
    • (T12) Mauna Kea-UH/Tholen NEO Follow-Up (2.24-m), US/Hawaii. 
  • Perihelion Distance: 0.4829280277140071(AU)
  • Aphelion Distance: 1.007267187900272(AU)
  • Earth MOID: 0.00482722(AU),  1.879 (LD), 113.348270821(Earth Radii), 448,718.132 (Miles), or 722,141.833(KM)
  • Close-Approach to Earth: Will safely pass Earth on 2019-Jan-15 at a Nominal Distance of  0.0100782635426263(AU), 3.922(LD), 236.648370166 (Earth Radii), 936,833.123(Miles), or 1,507,686.766(KM)

Dec 17, 2018

Confirmation Images Of The NEOCP(NEO Confirmation Page) Object (A10aElq = 2002 XQ90) on 2018-12-13

The NEO 2002 XQ90 first observed at an apparent magnitude of 17.4 by Lincoln Laboratory ETS, New Mexico(MPC Code 704) on 2002-12-15, ten days after it made a approaches of 11.50 Lunar Distances (0.02954 Astronomical Units). This asteroid was observed until 2003-01-12 when it became too faint to be observed. On 2018-12-09 ATLAS-MLO(Asteroid Terrestrial-impact Last Alert System - Mauna Loa) on its nightly sweep of the nigh sky found an object at an apparent magnitude of an apparent magnitude of 19.1. Observations of this object were reported to the Minor Planet Center(MPC) using the observer-assigned temporary designation A10aElq. The object was posted the NEO Confirmation Page. Observer from around world submitted confirmation observations to the MPC.  In an effort to help in the confirmation I obtain 60-10 Second Luminance BIN2 taken using iTelescope.net's(T11).

I use Astrometrica to do the data reduction by way of the stack and track method. I had Astrometrica stack 4 sets(stacks) of 14 images. 

A confirmation image of the NEOCP(NEO Confirmation Page) object (A10aElq = 2002 XQ90)
on 2018-12-13 from Mayhill, New Mexico [New Mexico Skies](MPC Code H06)
a stack of 14-10 second luminance BIN2 images
taken with iTelescope.net's (T11)
By Steven M. Tilley
A confirmation image of the NEOCP(NEO Confirmation Page) object (A10aElq = 2002 XQ90)
on 2018-12-13 from Mayhill, New Mexico [New Mexico Skies](MPC Code H06)
a stack of 14-10 second luminance BIN2 images
taken with iTelescope.net's (T11)
By Steven M. Tilley
A confirmation image of the NEOCP(NEO Confirmation Page) object (A10aElq = 2002 XQ90)
on 2018-12-13 from Mayhill, New Mexico [New Mexico Skies](MPC Code H06)
a stack of 14-10 second luminance BIN2 images
taken with iTelescope.net's (T11)
By Steven M. Tilley
A confirmation image of the NEOCP(NEO Confirmation Page) object (A10aElq = 2002 XQ90)
on 2018-12-13 from Mayhill, New Mexico [New Mexico Skies](MPC Code H06)
a stack of 14-10 second luminance BIN2 images
taken with iTelescope.net's (T11)
By Steven M. Tilley

I submitted my observations to the Minor Planet Center(MPC).
On 2018-12-16 the MPC issued MPEC 2018-Y02 : 2002 XQ90 and identify the A10aElq as 2002 XQ90.

Close-Approach (CA) Date and Time (TDB)  ± Time Uncertainty CA Distance Nominal (LD) CA Distance Nominal (au) CA Distance Minimum (LD) CA Distance Minimum (au)
1903-10-01 14:09  ± 00:02 24.91 0.06401 24.91 0.06401
1919-09-21 01:49  ± < 00:01 21.14 0.05433 21.14 0.05433
1935-09-09 11:52  ± < 00:01 42.43 0.10902 42.43 0.10902
1986-12-18 06:01  ± < 00:01 44.06 0.1132 44.05 0.1132
2002-12-05 01:14  ± < 00:01 11.5 0.02954 11.5 0.02954
2018-12-11 01:08  ± < 00:01 18.03 0.04633 18.03 0.04633
2079-09-25 12:59  ± < 00:01 22.64 0.05818 22.64 0.05818
2095-11-07 20:06  ± 00:03 29.34 0.07538 29.33 0.07538
2111-11-29 13:51  ± 00:02 16.73 0.04298 16.72 0.04297
2127-12-07 00:16  ± < 00:01 9.98 0.02565 9.98 0.02565
2143-12-23 11:58  ± 00:04 55.32 0.14216 55.31 0.14213
2188-09-08 17:20  ± 00:06 65.3 0.1678 65.28 0.16775

Also see:

Oct 1, 2018

September 2018 In NEO News in Review


The Japanese Space Agency,JAXA,  successfully landed two small robotic rovers on the asteroid Ryugu.

JPL Close Approach Data for September 2018  Distance Nominal <  1  Lunar Distance
Object Close-Approach (CA) Date
CA Distance Nominal 
(LD | au)
CA Distance Minimum 
 (LD | au)
H (mag) Estimated Diameter
2018 SM 2018-Sep-15  0.11 | 0.00028 0.11 | 0.00028 29.4 3.5 m -  7.9 m
2018 RZ5 2018-Sep-12 0.13 | 0.00033 0.13 | 0.00033 29.7 3.1 m -  6.9 m
2018 SD2 2018-Sep-25 0.23 | 0.00059 0.23 | 0.00058 28.6 5.0 m -   11 m
2018 RS 2018-Sep-05  0.28 | 0.00071 0.27 | 0.00071 29.5 3.4 m -  7.6 m
2018 RJ3 2018-Sep-07  0.44 | 0.00112 0.43 | 0.00112 27.8 7.2 m -   16 m
2018 RW 2018-Sep-08  0.44 | 0.00114 0.44 | 0.00114 30.3 2.3 m -  5.2 m
2018 RY5 2018-Sep-12  0.47 | 0.00120 0.47 | 0.00120 26.5 13 m -   30 m
2018 RC 2018-Sep-09 0.58 | 0.00150 0.58 | 0.00150 24.9 28 m -   63 m
2018 SC 2018-Sep-18  0.70 | 0.00179 0.70 | 0.00179 27.9 6.9 m -   16 m
2018 RR1 2018-Sep-03  0.94 | 0.00243 0.94 | 0.00242 29.9 2.7 m -  6.1 m
2018 RE2 2018-Sep-06  0.99 | 0.00255 0.99 | 0.00254 28.5 5.4 m -   12 m

Objects removed from JPL's Sentry: Earth Impact Monitoring page.

Object Designation Removed (UTC)
2018 RB7 9/29/2018 15:26
2018 RJ7 9/22/2018 16:11
2018 RP5 9/16/2018 15:06
2018 RQ1 9/16/2018 15:00
2018 RH3 9/15/2018 16:06
2018 RT3 9/15/2018 16:04
2018 RE5 9/14/2018 15:18
2018 PY7 9/12/2018 15:02
2018 RP 9/09/2018 15:07
2018 MC7 9/07/2018 14:50
2018 RC 9/06/2018 15:04
2018 QJ1 9/03/2018 14:43

Highlights of My Work for September 2018   

A confirmation image of the NEO 2018 RQ1(ZR388AE)
on 2018-09-08 from Siding Spring Observatory, 
Coonabarabran, NSW, Australia. (MPC Q62) 
a stack of 60-30 second luminance BIN2 images 
taken with iTelescope.net's (T31) 
by Steven M. Tilley

An image of the NEO 2018 RQ1
on 2018-09-09 from 
Siding Spring Observatory, 
Coonabarabran, NSW, Australia. (MPC Q62) 
a stack of 22-30 second luminance BIN2 images 
taken with iTelescope.net's (T30) 
by Steven M. Tilley
An image of the NEO 2018 RQ1
on 2018-09-10 
from Sierra Remote Observatory, Auberry, California (MPC U69) 
a stack of 14-30 second luminance BIN2 images 
taken with iTelescope.net's (T24) 
By Steven M. Tilley



Object I observed in September 2018 
Designation Classification MPC Code Telescope Date of  observations Number of  observations
2046 Main Belt Q62 T17 9/2/2018 3
61324 Main Belt Q62 T31 9/1/2018 3
61324 Main Belt Q62 T31 9/1/2018 3
61417 Main Belt Q62 T31 9/1/2018 3
61417 Main Belt Q62 T31 9/1/2018 3
71460 Main Belt Q62 T31 9/1/2018 3
71460 Main Belt Q62 T31 9/1/2018 3
73540 Main Belt Q62 T31 9/1/2018 3
73540 Main Belt Q62 T31 9/1/2018 3
80076 Main Belt H06 T11 9/14/2018 3
83105 Main Belt Q62 T31 9/1/2018 3
84966 Main Belt Q62 T31 9/8/2018 3
128837 Main Belt Q62 T31 9/8/2018 3
157941 Main Belt Q62 T31 9/1/2018 3
173394 Main Belt Q62 T31 9/1/2018 3
173394 Main Belt Q62 T31 9/1/2018 3
197120 Main Belt Q62 T31 9/1/2018 3
209101 Main Belt Q62 T31 9/1/2018 3
231098 Main Belt Q62 T17 9/2/2018 3
253061 Main Belt Q62 T31 9/1/2018 3
331431 Main Belt Q62 T31 9/8/2018 3
523788 NEO(Apollo) Q62 T17 9/30/2018 3
1998 SD9 NEO(Aten) H06 t11 9/1/2018 3
2018 RB NEO(Apollo, PHA) Q62 T31 9/1/2018 3
2018 RB NEO(Apollo, PHA) Q62 T31 9/1/2018 3
2018 RB NEO(Apollo, PHA) Q62 T17 9/2/2018 3
2018 RP8 NEO(Aten) H06 T21 9/17/2018 4
2018 RQ1 NEO(Aten) Q62 T31 9/8/2018 3
2018 RQ1 NEO(Aten) Q62 T30 9/9/2018 3
2018 RQ1 NEO(Aten) H06 T11 9/10/2018 3
2018 RQ1 NEO(Aten) U69 T24 9/10/2018 3
21P/Giacobini-Zinner Comet H06 T11 9/14/2018 3
46P/Wirtanen Comet Q62 T17 9/22/2018 4
Total 101

Sep 24, 2018

The Comet 46P/Wirtanen on 2018-09-22 from (MPC Q62)


The Comet 46P/Wirtanen
on 2018-09-22 from Siding Spring Observatory,
Coonabarabran, NSW, Australia. (MPC Q62)
a stack of 15 - 60 second luminance BIN2 images
taken with iTelescope.net's (T17)
By Steven M. Tilley
The Comet 46P/Wirtanen
on 2018-09-22 from Siding Spring Observatory, 
Coonabarabran, NSW, Australia. (MPC Q62) 
a stack of 15 - 60 second luminance BIN2 images 
taken with iTelescope.net's (T17) 
By Steven M. Tilley
The Comet 46P/Wirtanen
on 2018-09-22 from Siding Spring Observatory, 
Coonabarabran, NSW, Australia. (MPC Q62) 
a stack of 15 - 60 second luminance BIN2 images 
taken with iTelescope.net's (T17) 
By Steven M. Tilley
The Comet 46P/Wirtanen
on 2018-09-22 from Siding Spring Observatory, 
Coonabarabran, NSW, Australia. (MPC Q62) 
a stack of 15 - 60 second luminance BIN2 images 
taken with iTelescope.net's (T17) 
By Steven M. Tilley
The Comet 46P/Wirtanen
on 2018-09-22 from Siding Spring Observatory,
Coonabarabran, NSW, Australia. (MPC Q62)
a stack(Add) of 60 - 60 second luminance BIN2 images
taken with iTelescope.net's (T17)
By Steven M. Tilley
The Comet 46P/Wirtanen
on 2018-09-22 from Siding Spring Observatory,
Coonabarabran, NSW, Australia. (MPC Q62)
a stack(Average) of 60 - 60 second luminance BIN2 images
taken with iTelescope.net's (T17)
By Steven M. Tilley
The Comet 46P/Wirtanen
on 2018-09-22 from Siding Spring Observatory,
Coonabarabran, NSW, Australia. (MPC Q62)
a stack(Median) of 60 - 60 second luminance BIN2 images
taken with iTelescope.net's (T17)
By Steven M. Tilley
These observations were made in support of the PACA_46P/Wirtanen campaign

Sep 20, 2018

Confirmation images of the NEO 2018 RP8

The NEO(Aten) 2018 RP8 (approximate diameters 320 m - 710 m [ 1049.87 foot -  2329.4 foot]) was first observed by ATLAS HKO (Asteroid Terrestrial-Impact Last Alert System)  on 2018-09-15. The observations were submitted to the Minor Planet Center(MPC) in Cambridge, Massachusetts using the observer-assigned temporary designation A108wr0. This "new" asteroid was posted to the NEO Confirmation Page(NEOCP) informing observers around the world that "A108wr0" needed confirmation observations.  In an  effort to help in the confirmation  I obtain 60-15 Second Luminance BIN2 taken using  iTelescope.net's(T21).


I use Astrometrica to do the data reduction by way of the stack and track method. I had Astrometrica stack 4 sets(stacks) of  15 images.  Each image was shifted match movement of  A108wr0.
.

Confirmation image of the NEOCP(NEO Confirmation Page)object A108wr0 (now 2018 RP8)
from Mayhill, New Mexico 
[New Mexico Skies](MPC Code H06) 
15-15 second luminance BIN2 images
 taken with iTelescope.net's (T21)
By Steven M. Tilleyn
Confirmation image of the NEOCP(NEO Confirmation Page)object A108wr0 (now 2018 RP8)
from Mayhill, New Mexico 
[New Mexico Skies](MPC Code H06) 
15-15 second luminance BIN2 images
 taken with iTelescope.net's (T21)
By Steven M. Tilleyn
Confirmation image of the NEOCP(NEO Confirmation Page)object A108wr0 (now 2018 RP8)
from Mayhill, New Mexico 
[New Mexico Skies](MPC Code H06) 
15-15 second luminance BIN2 images
 taken with iTelescope.net's (T21)
By Steven M. Tilleyn
Confirmation image of the NEOCP(NEO Confirmation Page)object A108wr0 (now 2018 RP8)
from Mayhill, New Mexico 
[New Mexico Skies](MPC Code H06) 
15-15 second luminance BIN2 images
 taken with iTelescope.net's (T21)
By Steven M. Tilleyn
Confirmation image of the NEOCP(NEO Confirmation Page)object A108wr0 (now 2018 RP8)
from Mayhill, New Mexico 
[New Mexico Skies](MPC Code H06) 
60-15 second luminance BIN2 images
 taken with iTelescope.net's (T21)
By Steven M. Tilleyn
I submitted my observations to the  Minor Planet Center(MPC).

On 2018 Sept. 8 at 21:42 UTC the MPC Issued MPEC 2018-S25 : 2018 RP8 assigning the objet the provisonal designation 2018 RP8.

How Are Minor Planets Named?

Sep 15, 2018

Comet 21P/Giacobini-Zinner on 2018-09-14 from Mayhill, New Mexico


Comet 21P/Giacobini-Zinner on 2018-09-14 from Mayhill, New Mexico [New Mexico Skies](MPC Code H06) 60-30 second luminance BIN2 images taken with iTelescope.net's (T11)

Credits

The targeting information was obtained from the
The Minor Planet Center (MPC)
http://www.minorplanetcenter.net/

The images where taken with iTelescope.net's
(TEL T11 0.50-m f/6.8 reflector + CCD + f/4.5 focal reducer)Mayhill, New Mexico [New Mexico Skies](MPC Code H06)

http://iTelescope.Net/

The observations were made in support of the PACA_21/GZ campaign

https://www.facebook.com/ThePACAProject/

Image blinking and 1st stacked image was done with CCDStack2


http://www.ccdware.com/

Data reduction, the stacked images, and the object verification windows was done with Astrometrica

http://www.astrometrica.at/

The data was examine with the help of
Find_Orb Orbit determination software - Project Pluto

http://www.projectpluto.com/find_orb.htm

Music: Good Starts by Jingle Punks from YouTube Audio Library
https://www.youtube.com/watch?v=NstTz8iyl-c

(c) Steven M. Tilley

http://lagniappeobserving.com

Sep 10, 2018

More Follow-up Observations of 2018 RQ1


The NEO(Aten) 2018 RQ1 (approximate diameters 39 m - 88 m [127.953 foot - 288.7139 foot]) was first observed by the Catalina Sky Survey on 2018-09-07. As of 2018-09-10 2018 RQ1 as a data-arc span of 72.77 hr with 44 published observations. 2018 RQ1 is listed on the NASA/JPL Sentry and NEODyS CLOMON2 risk pages.(as of 2018-09-10) In an effort to help with the improvement of the known orbit I booked imaging runs on iTelescope.net's T11 and T24 of 60-30 second luminance BIN2 images each.

I was able to obtain 20 images from T11. I use Astrometrica to do the data reduction by way of the stack and track method. I had Astrometrica stack 3 sets(stacks) of 6 images. Each image was shifted match the movement of 2018 RQ1.

An image of the NEO 2018 RQ1
on 2018-09-10
from Mayhill, New Mexico
[New Mexico Skies](MPC Code H06)
a stack of 6-30 second luminance BIN2 images
taken with iTelescope.net's (T11)
By Steven M. Tilley

An image of the NEO 2018 RQ1
on 2018-09-10 
from Mayhill, New Mexico 
[New Mexico Skies](MPC Code H06) 
a stack of 6-30 second luminance BIN2 images
taken with iTelescope.net's (T11) 
By Steven M. Tilley
An image of the NEO 2018 RQ1
on 2018-09-10 
from Mayhill, New Mexico 
[New Mexico Skies](MPC Code H06) 
a stack of 6-30 second luminance BIN2 images
taken with iTelescope.net's (T11) 
By Steven M. Tilley
I was able to obtain 49 images from T24. I use Astrometrica to do the data reduction by way of the stack and track method. I had Astrometrica stack 3 sets(stacks) of 14 images. I had work around the meridian flip.

An image of the NEO 2018 RQ1
on 2018-09-10 
from Sierra Remote Observatory, Auberry, California (MPC U69) 
a stack of 14-30 second luminance BIN2 images 
taken with iTelescope.net's (T24) 
By Steven M. Tilley
An image of the NEO 2018 RQ1
on 2018-09-10 
from Sierra Remote Observatory, Auberry, California (MPC U69) 
a stack of 14-30 second luminance BIN2 images 
taken with iTelescope.net's (T24) 
By Steven M. Tilley
An image of the NEO 2018 RQ1
on 2018-09-10 
from Sierra Remote Observatory, Auberry, California (MPC U69) 
a stack of 14-30 second luminance BIN2 images 
taken with iTelescope.net's (T24) 
By Steven M. Tilley
see
Accessible NEA(Object/Trajectory Details for 2018 RQ1)